Pros- Small- Lightweight- Stylish- Comfortable- Smart Backlight- Controls 3 devices via Bluetooth with one press of a button- Very easy to pair with devicesConsis Bluetooth if you don't have a built in bluetooth in bios you can't use it in dos or enter the bios you have to hook up another keyboard which isn't bluetooth.Don't come with bluetooth adapter you have to supply your own if your system isn't built in with bluetooth already.Some Bluetooth adapters doesn't work with setpoint.SummaryDesign for Windows 8 also works with Windows 7, Easy to use and comfortable to type on for hrs on end., You can sync your PC , iPad, iPhone and Andriod Devices up to three buttons to sync, and You can sync an Microsoft Surface Tablet since is using Windows 8 in the OS since works like a PC aswell.is illuminated so you can type in the dark and recharable similar to the previous K800 Keyboard.FeaturesLaser-etched backlit keys:

Type easily in low light and even in the dark. Back lighting ensures the keys are sharp, bright and always easy to read in any light. Only the key characters are illuminated, so you see just what you need to see without distraction.

Auto-adjusting illumination:

The illumination automatically adjusts to suit the light conditions in the room. You can also manually adjust the brightness of the illumination using the F5 and F6 keys.

Hand proximity detection:

A motion sensor detects your hands as they approach the keyboard and turns the backlight on/off to help you save power when you are not typing.

Logitech Easy-Switch™:

Press one button to switch in a second between your Bluetooth devices. Logitech Easy-Switch allows you to quickly toggle between typing an email on your Windows® PC, to taking notes on your Apple® iPad®, to replying to a text on your Android™ smartphone.

Reliable Bluetooth connection:

Pair the keyboard with your PC, tablet and smartphone easily over Bluetooth. The fast, reliable connection allows you to move and type on the keyboard anywhere within 30 feet (9 meters) of your Bluetooth devices.

Simply stylish:

The keyboard case is real, brushed aluminum with a high-grade finish to complement the design, look and feel of today’s trendiest PCs, Ultrabooks™, tablets and smartphones.

Sleek and ultra-thin:

With sleek lines and low-profile keys, this slim keyboard will be an elegant addition to your workspace.

Compact and wireless:

The minimalist, cable-free design takes up much less space on your desk than a full-size keyboard. It also means you can take your keyboard wherever you go with your Ultrabook, tablet or smartphone.Designed for Windows 8, compatible with Android and iOS®This keyboard has specific keys to help you easily navigate the new Windows 8 style user interface. The Windows 8 Start key provides an easy way to get back to your start screen. The App Switching FN key allows you to quickly toggle between your open apps. Although it was specially designed for Windows 8, this keyboard also works well with Windows 7, iOS and Android operating systems.

USB rechargability:

Forget about having to change batteries. With USB rechargability, you’ll never run out of power. Easily top up your keyboard with the convenient USB cable and continue to work. You’ll enjoy between 10 days* and up to a year of power, depending on the intensity of illumination and time spent typing.Power managementOn/Off switch on the right side panel helps you conserve power when the keyboard is not in use. There is also a battery indicator light which turns red when you need to power up and green when the keyboard is charging.

Logitech Incurve™ keys:

Type comfortably thanks to the unique Logitech keycap design. The concave key surface complements the natural profile of your fingertips and helps you better locate each key for an improved typing experience. The key edges are also softly rounded so your fingertips glide smoothly from key to key.

Logitech PerfectStroke™ key system:

The PerfectStroke key system distributes typing force evenly across the key surfaces making every keystroke silent, natural and fluid—even if you strike the edge of a key.

I've been eying the Mac version. It's definitely one of the nicest designed keyboards out there. Am I the only one who thinks the prices on these things are completely out of proportion though? €100 for a keyboard! It's not just Logitech, Microsoft and Apple are equally as guilty.

For me personally it just doesn't offer enough over the Apple Wireless Keyboard that will ship by default with my new iMac. Although granted, I'm a sucker for the black backlit keys.